<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>用户登录首页</title>
</head>
<body>
登录人: <span id="loginUser"></span>

<script src="js/jquery.min.js"></script>
<script>
  // 页面加载时获取登录用户信息
  getLoginUser();

  function getLoginUser() {
    $.ajax({
      type: "get", // HTTP方法
      url: "/user/getLoginUser", // 请求URL
      success: function(body) { // 请求成功回调
        console.log(body); // 调试输出

        if (body != "") {
          // 有登录用户，显示用户名
          $("#loginUser").text(body);
        }
      }
    });
  }
</script>
</body>
</html>